iText is a PDF library that allows you to CREATE, ADAPT, INSPECT and MAINTAIN documents in the Portable Document Format (PDF):
- Generate documents and reports based on data from an XML file or a database
- Create maps and books, exploiting numerous interactive features available in PDF
- Add bookmarks, page numbers, watermarks, and other features to existing PDF documents
- Split or concatenate pages from existing PDF files
- Fill out interactive forms
- Serve dynamically generated or manipulated PDF documents to a web browser
iText is used by Java, .NET, Android and GAE developers to enhance their applications with PDF functionality.
iTextSharp is the .NET port.
Several iText engineers are actively supporting the project on the iText mailing-list itext-questions@lists.sourceforge.net and on StackOverflow: http://stackoverflow.com/questions/tagged/itext

IsoCreator (could also be called Folder-to-ISO or Directory-to-ISO) C#.NET 2.0 application which creates ISO 9660 Joliet CD images from a given folder or volume. Can also create ISO with virtual files, given a tree representing a directory structure.

RED searches and deletes empty directories recursively below a given start folder and shows the result in a well arranged tree. Further you can create some custom rules for keeping and deleting folders. Empty files in directories can also be ignored.

Test, validate and diagnose communication protocols in medical environments (DICOM, HL7 and IHE). DVTk is a must have for software developers, test engineers and service engineers that work in the healthcare domain. NEW. Services on www.dvtk.org!

A plugin which uses Exuberant Ctags to parse either only the currently activated source file or multiple files of so-called sessions. The results are shown and can be browsed in a treeview inside of a dockable window.

A collection of tools related to creating and using mods in Fallout 3. From kaburke: Sorry for the lack of recent support. I haven't abandoned everyone, but I am actively working to create the best FOMM yet.

Little Registry Cleaner is an open source program designed for Microsoft's Windows Registry. Its purpose is to remove obsolete or unwanted items that build up in the registry over time in order to improve the stability & performance of your computer

NASA World Wind is a graphically rich 3D virtual globe for use on desktop computers running Windows. It combines NASA imagery generated from satellites that have produced Blue Marble, Landsat 7, SRTM, MODIS and more.